Bug 1214615 (CVE-2020-22219)

Summary:	VUL-0: CVE-2020-22219: flac: Buffer Overflow vulnerability in function bitwriter_grow_ in flac before 1.4.0 allows remote attackers to run arbitrary code via crafted input to the encoder.
Product:	[Novell Products] SUSE Security Incidents	Reporter:	Yvann Ferry <yvann.ferry>
Component:	Incidents	Assignee:	Security Team bot <security-team>
Status:	RESOLVED FIXED	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	gianluca.gabrielli, security-team, thomas.leroy
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/375980/
Whiteboard:	CVSSv3.1:SUSE:CVE-2020-22219:6.5:(AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Yvann Ferry 2023-08-25 10:56:13 UTC

CVE-2020-22219

Buffer Overflow vulnerability in function bitwriter_grow_ in flac before 1.4.0
allows remote attackers to run arbitrary code via crafted input to the encoder.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-22219
https://www.cve.org/CVERecord?id=CVE-2020-22219
https://github.com/xiph/flac/issues/215

Comment 1 Takashi Iwai 2023-08-28 15:56:51 UTC

The old flac code on SLE12-SP4 and older doesn't use safe_realloc_(), hence this bug isn't triggered.

I'm going to patch SUSE:SLE-15:Update/flac.

Comment 2 Takashi Iwai 2023-08-29 06:49:10 UTC

The fix for SLE15 is submitted.

Comment 4 Gianluca Gabrielli 2023-08-29 09:30:16 UTC

I guess the two following codestreams also requires a submission:

- SUSE:ALP:Source:Standard:1.0/flac
- openSUSE:Factory/flac

Comment 5 Takashi Iwai 2023-08-29 09:37:48 UTC

(In reply to Gianluca Gabrielli from comment #4)
> I guess the two following codestreams also requires a submission:
> 
> - SUSE:ALP:Source:Standard:1.0/flac
> - openSUSE:Factory/flac

Those are already v1.4.3 that includes the fix (the bug was old!)

Comment 6 Gianluca Gabrielli 2023-08-29 09:47:19 UTC

Sorry, and thanks for your prompt reply.

Comment 7 Maintenance Automation 2023-09-18 12:30:33 UTC

SUSE-SU-2023:3635-1: An update that solves one vulnerability can now be installed.

Category: security (moderate)
Bug References: 1214615
CVE References: CVE-2020-22219
Sources used:
openSUSE Leap 15.4 (src): flac-1.3.2-150000.3.14.1
openSUSE Leap 15.5 (src): flac-1.3.2-150000.3.14.1
Basesystem Module 15-SP4 (src): flac-1.3.2-150000.3.14.1
Basesystem Module 15-SP5 (src): flac-1.3.2-150000.3.14.1
SUSE Package Hub 15 15-SP4 (src): flac-1.3.2-150000.3.14.1
SUSE Package Hub 15 15-SP5 (src): flac-1.3.2-150000.3.14.1
SUSE Manager Proxy 4.2 (src): flac-1.3.2-150000.3.14.1
SUSE Manager Retail Branch Server 4.2 (src): flac-1.3.2-150000.3.14.1
SUSE Manager Server 4.2 (src): flac-1.3.2-150000.3.14.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.